217625960

素因数分解:

$2^3\times 5^1\times {\mathrm{1613}}^1\times {\mathrm{3373}}^1$

素因数の和:4997

約数の個数: 32

約数和(自身を含む): 490107240

約数和(自身を除く): 272481280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1613, 3226, 3373, 6452, 6746, 8065, 12904, 13492, 16130, 16865, 26984, 32260, 33730, 64520, 67460, 134920, 5440649, 10881298, 21762596, 27203245, 43525192, 54406490, 108812980, 217625960]

約数ペア:

[(1, 217625960), (2, 108812980), (4, 54406490), (5, 43525192), (8, 27203245), (10, 21762596), (20, 10881298), (40, 5440649), (1613, 134920), (3226, 67460), (3373, 64520), (6452, 33730), (6746, 32260), (8065, 26984), (12904, 16865), (13492, 16130)]